Converting NRG files to a more common file format such as ISO (disc image file) can make it easier to open them on your computer. You can download NRG conversion software, such as MagicISO for free from a variety of websites. Before downloading, however, make sure the software is compatible with your computer.
Download MagicISO and install it on your computer. Then, run MagicISO.
Click to open NRG files.
Click to open Properties Dialogue.
Uncheck Apple HFS and Apple HFS+.
Check ISO 9660, Joliet, and UDF.
Click to save as to ISO image, or click to burn to CD/DVD without saving.